I have a machine that is giving restriction from the acid pump into the Df sub rack causing my line from the pump to blow. I have checked all the valves in tms mode and all are opening and closing I checked RVFPE to see if it was stuck and it was ok..any suggestions would be greatly appreciated.
Check the line that goes to the DF block from the acid pump. Also, check RVK. On the machine at the top of the block is a grey cap. take it off and pull out the spring and disc. With the machine off, hook up a syringe to the input of the block from the pump and flush that cavity out.